mozilla-bmo1725828.patch
author Wolfgang Rosenauer <wr@rosenauer.org>
Sat, 04 Dec 2021 11:19:16 +0100
branchfirefox94
changeset 1168 c384af864671
parent 1164 bb219fd0d646
permissions -rw-r--r--
Firefox 94.0.2

# HG changeset patch
# Parent  fbca0d2a522cd1ab78001476293d3d79bfabb4cf

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        <pre class="syntaxhighlightblock"><code class="lang-diff">diff -up firefox-92.0/dom/media/gmp/GMPChild.cpp.1725828 firefox-92.0/dom/media/gmp/GMPChild.cpp

diff --git a/dom/media/gmp/GMPChild.cpp b/dom/media/gmp/GMPChild.cpp
--- a/dom/media/gmp/GMPChild.cpp
+++ b/dom/media/gmp/GMPChild.cpp
@@ -227,18 +227,24 @@ mozilla::ipc::IPCResult GMPChild::RecvPr
               .EqualsASCII(lib.Data(), lib.Length())) {
         LoadLibraryW(char16ptr_t(whiteListedLib));
         break;
       }
     }
   }
 #elif defined(XP_LINUX)
   constexpr static const char* whitelist[] = {
+      // NSS libraries used by clearkey.
       "libfreeblpriv3.so",
       "libsoftokn3.so",
+      // glibc libraries merged into libc.so.6; see bug 1725828 and
+      // the corresponding code in GMPParent.cpp.
+      "libdl.so.2",
+      "libpthread.so.0",
+      "librt.so.1",
   };
 
   nsTArray<nsCString> libs;
   SplitAt(", ", aLibs, libs);
   for (const nsCString& lib : libs) {
     for (const char* whiteListedLib : whitelist) {
       if (lib.EqualsASCII(whiteListedLib)) {
         auto libHandle = dlopen(whiteListedLib, RTLD_NOW | RTLD_GLOBAL);
@@ -251,17 +257,17 @@ mozilla::ipc::IPCResult GMPChild::RecvPr
           if (error) {
             // We should always have an error, but gracefully handle just in
             // case.
             nsAutoCString nsError{error};
             CrashReporter::AppendAppNotesToCrashReport(nsError);
           }
           // End bug 1698718 logging.
 
-          MOZ_CRASH("Couldn't load lib needed by NSS");
+          MOZ_CRASH("Couldn't load lib needed by media plugin");
         }
       }
     }
   }
 #endif
   return IPC_OK();
 }
 
diff --git a/dom/media/gmp/GMPParent.cpp b/dom/media/gmp/GMPParent.cpp
--- a/dom/media/gmp/GMPParent.cpp
+++ b/dom/media/gmp/GMPParent.cpp
@@ -871,16 +871,30 @@ RefPtr<GenericPromise> GMPParent::ParseC
     mLibs = "dxva2.dll"_ns;
 #endif
   } else {
     GMP_PARENT_LOG_DEBUG("%s: Unrecognized key system: %s, failing.",
                          __FUNCTION__, mDisplayName.get());
     return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
   }
 
+#ifdef XP_LINUX
+  // These glibc libraries were merged into libc.so.6 as of glibc
+  // 2.34; they now exist only as stub libraries for compatibility and
+  // newly linked code won&#39;t depend on them, so we need to ensure
+  // they&#39;re loaded for plugins that may have been linked against a
+  // different version of glibc.  (See also bug 1725828.)
+  if (!mDisplayName.EqualsASCII("clearkey")) {
+    if (!mLibs.IsEmpty()) {
+      mLibs.AppendLiteral(", ");
+    }
+    mLibs.AppendLiteral("libdl.so.2, libpthread.so.0, librt.so.1");
+  }
+#endif
+
   nsCString codecsString = NS_ConvertUTF16toUTF8(m.mX_cdm_codecs);
   nsTArray<nsCString> codecs;
   SplitAt(",", codecsString, codecs);
 
   // Parse the codec strings in the manifest and map them to strings used
   // internally by Gecko for capability recognition.
   //
   // Google's code to parse manifests can be used as a reference for strings